Whistle for moving through air

ABSTRACT

A air whistle which includes spaced annular plates, a tubular wall connecting the plates and surrounding openings in the plates, and a tubular stem mounted on one of the plates surrounding the opening thereof and extending outwardly thereof. When the whistle is drawn through the air, stem first, it emits a piercing sound.

[ 1 Feb. 1,1972

United States Patent Stoecklin 2,880,548 4/i959 Marr........................................46/l79 2,919,919 1/1960 [54] WHISTLE FOR MOVING THROUGH AIR [72] Inventor:

Carl smkun, Homelawn Ave, Primary Examiner-Russell R. Kinsey Cheviot, Ohio 4521 1 Assistant Examiner-Robert F. Cutting Dec. 14 1970 Attorney-Pearce & Schaeperklaus [2]] Appl. No.: 97,838

[22] Filed:

ABSTRACT A air whistle which includes spaced annular plates, a tubular 46/179 wall connecting the plates and surrounding openings in the A63 17/00 plates, and a tubular stem mounted on one of the plates surrounding the opening thereof and extending outwardly 0f thereof. w the whistle is drawn through the stem first it emits a piercing sound.

[5i] Int.Cl..............

7 Claims, 7 Drawing Figures References Cited UNITED STATES PATENTS 1,568,528 1/1926 Petrie...............,......................46/I79 PATENTEB FEB 1 e72 \NVENTOR. CARL E. STOECKLIN fiTTORNEYS WHISTLE FOR MOVING THROUGH AIR This invention relates to an air whistle construction.

An object of this invention is to provide a whistle which produces a loud sound when drawn through the air at speeds at which vehicles commonly move.

Briefly, this invention provides a whistle which includes a sounding box or air chamber formed by two parallel sheets of stiff material such as metal or the like with aligned openings therein, and an annular wall surrounding the openings and spaced therefrom. A tubular stem is attached to one of the sheets surrounding the opening and extending outwardly thereof. When the whistle is moved through the air, stem first, it emits a piercing whistling noise, the character of which is determined by the dimensions thereof. The air whistle has many variables such as stem diameter, stem length, air chamber diameter, air chamber height, and the diameter of plate openings, which variables, when used in proper combination, affect not only the character of the sound emitted, but also provide a wide variety of speed ranges.

The above and other objects and features of the invention will be apparent to those skilled in the art to which the invention pertains from the following detailed description and the drawing, in which:

FIG. 1 is a top plan view of a whistle constructed in accordance with an embodiment of this invention;

FIG. 2 is a bottom plan view of the whistle shown in FIG. 1;

FIG. 3 is a view in side elevation of the whistle shown in FIGS. 1 and 2, a fragmentary portion of a windmill being shown in association therewith;

FIG. 4 is a view in section taken on the line 44 in FIG. 1;

FIG. 5 is a view in front elevation ofa windmill with whistles mounted thereon;

FIG. 6 is a view in side elevation of the windmill shown in Flg. 5; and

FIG. 7 is a perspective view of the windmill in association with an automobile, the windmill being shown in operative position, the automobile being shown in dashed lines.

In the following detailed description and the drawing, like reference characters indicate like parts.

In FIGS. 1-4 inclusive is shown a whistle I0 constructed in accordance with an embodiment of this invention. The whistle 10 includes an air chamber or sounding box 12 and a stem 13. The sounding box 12 includes parallel annular sheet material plate portions 14 and 16, there being central openings 17 and I8 in the plate portions 14 and 36, respectively. The plate portions 14 and I6 are held in spaced relation by a tubular wall I9, which surrounds and is spaced from the central openings I7 and 18.

The stem 13 is tubular and is attached to the outer face of the plate portion 16 surrounding and spaced from the opening 18 thereof. The portions of the whistle including the plate portions 14 and 16, the wall 19 and the stem 13 can be formed of stiff sheet material such as metal or stiff plastic material and can be adhesively attached together, or two or more of the portions can be molded integrally and adhesively attached to other portions to form the whistle 10.

A mounting block 22 can be adhesively attached to the stem I3. A stud 23 mounted in the block 22 serves for mounting the whistle. As shown in FIG. 3, the stud 23 can extend through an appropriate opening (not shown) in a vane 24 of a windmill or the like. A nut 26, with an associated washer 27, mounted on the stud 23 serves for attaching the whistle 10 to the windmill vane 24.

When the whistle 10 is drawn through the air, stem first, a piercing whistling sound is produced. The character of the sound is determined by the dimensions of the whistle. In addition, the dimensions can be varied in accordance with the speed at which the whistle is to be drawn through the air. The most important dimensions are the diameter v (FIG. 4) of the stem I3, the length w of the stem, the height x of the sounding box 12, the diameter y of the sounding box, and the diameter 1 of the plate openings. For my preferred whistle for use on a windmill 30 as shown in FIG. 5, the diameter v of the stem is approximately one-half inch, the diameter 2 of the plate openings is approximately one-half of the diameter v of the stem, both of the plate openings being approximately onefourth inch in diameter, the stem length w is approximately one-half inch, the air chamber height x is approximately threesixteenths inch, and the diameter y of the air chamber is approximately I% inches. My preferred whistle produces a loud whistling sound when drawn through the air at speeds of from 33 to SI miles per hour. When such whistles are mounted on the windmill 30 as shown in FIGS. 5-7 and as will be described in greater detail hereinafter, the windmill 30 can be drawn through the air at speeds of 25 to 40 miles per hour to give such sound production from the whistles. The dimensions are subject to variation, and good whistles producing loud sounds are obtained when the stem length w is from one-fourth inch to I inch, the air chamber height x is from one-eighth inch, to nine thirty-seconds inch, and the air chamber diameter is from I inch to 1% inch. The stem diameter v can vary from approximately one-half inch to three-fourths inch with diameters of the plate openings 17 and 18 being substantially equal to each other and preferably equal to approximately one-half or slightly less than one-half the diameter of the stem 13. Preferably the plate openings 17 and I8 are aligned with the axis of the stem 13 as shown in FIG. 4. The diameter of the air chamber 12 is substantially greater than and preferably twice as great as the diameter of the stem I3, or a little more than twice as great as the diameter of the stem I3. In general, shorter stem lengths give higher pitched whistles and longer stern lengths give lower pitched whistles. Moreover, as the stem length increases, the speed range in which a whistle functions properly is lowered. As the stem length decreases, the necessary speed to cause the whistle to sound satisfactorily is increased. With longer stems, it is necessary to use air chambers of greater diameter to attain satisfactory sound, and with whistles having longer stems and air chambers of greater diameter, whistles operate at lower speeds. With shorter stern lengths, air chambers of lesser diameters can be used for whistles which operate at higher speeds. At lesser speeds, lesser air chamber heights are required, and at higher speeds, greater air chamber heights are required.

As shown in FIGS. 5, 6, and 7, a group of whistles 10 can be mounted on the vanes 24 of the windmill 30. The windmill 30 is provided with a rotating head 31 rotatably mounted on a shaft 32 supported by a member 33 which is carried by a handle 34. The handle 34 can be bowed as shown in FIG. 6 for convenience in use. A handgrip 36 is provided on the handle 34. The windmill can be held by the handle 34 with handle 34 extending through a window opening 37 (FIG. 7) of an automobile 38 and with the rotating head 31 in the airstream outside the automobile so that, as the automobile advances, the windmill turns to drive the whistles through the air to cause the whistles to sound. Each whistle can be held in position where air is directed into the stem thereof to cause the whistle to sound as the windmill turns by adhesively attaching the block 22 thereof to the associated vane 24 of the windmill.

The whistle construction illustrated in the drawing and described above is subject to structural modification without departing from the spirit and scope of the appended claims.

Having described my invention, what I claim as new and desire to secure by letters patent is:

1. An air whistle which comprises a pair of spaced annular plates in parallel relationship, a tubular wall connecting the plates surrounding and spaced outwardly of coaxial openings in the plates, and a tubular stem mounted on one of the plates surrounding the opening thereof and extending outwardly thereof.

2. An air whistle as in claim I wherein the diameter of the stem is from approximately one-half inch to approximately three-fourths inch and the length of the stem is approximately one-fourth inch to l inch.

3. An air whistle as in claim 2 wherein the diameter of the plate openings is approximately one-half the diameter of the stem.

4. An air whistle as in claim 3 wherein the plate openings are aligned with the stem.

5. An air whistle as in claim 1 wherein the diameter of the stem is approximately one-half inch, the diameter of the plate openings is approximately one-fourth inch, the plates are parallel and spaced approximately three-sixteenths inch, and the diameter of the wall is approximately 1 /5 inch.

6. An air whistle as in claim 1 wherein a mounting block is attached to the stem, a mounting stud is mounted in the block, and the stud extends into and is mounted on a vane of a wind- 

1. An air whistle which comprises a pair of spaced annular plates in parallel relationship, a tubular wall connecting the plates surrounding and spaced outwardly of coaxial openings in the plates, and a tubular stem mounted on one of the plates surrounding the opening thereof and extending outwardly thereof.
 2. An air whistle as in claim 1 wherein the diameter of the stem is from approximately one-half inch to approximately three-fourths inch and the length of the stem is approximately one-fourth inch to 1 inch.
 3. An air whistle as in claim 2 wherein the diameter of the plate openings is approximately one-half the diameter of the stem.
 4. An air whistle as in claim 3 wherein the plate openings are aligned with the stem.
 5. An air whistle as in claim 1 wherein the diameter of the stem is approximately one-half inch, the diameter of the plate openings is approximately one-fourth inch, the plates are parallel and spaced approximately three-sixteenths inch, and the diameter of the wall is approximately 1 1/8 inch.
 6. An air whistle as in claim 1 wherein a mounting block is attached to the stem, a mounting stud is mounted in the block, and the stud extends into and is mounted on a vane of a windmill, whereby, when the windmill is turned by air passing the windmill, the air is directed along the stem to cause the whistle to sound.
 7. An air whistle as in claim 5 wherein a mounting block is attached to the stem, a mounting stud is mounted in the block, and the stud extends into and is mounted on a vane of a windmill, whereby, when the windmill is turned by air passing the windmill, the air is directed along the stem to cause the whistle to sound. 